... Caught in the act: Cascading material pours onto a young star . ... It is likely that a large amount of material built up in its surrounding disk and suddenly reached a critical point where it overflowed and poured onto the star at a rate 20 times greater than usual, releasing vast amounts of heat and ejecting excess material and momentum into the surrounding cloud. ... In Herschelт??s infrared view, the flare of HBC 722 may highlight vast flows of material from nearby colder and even younger stars....